Siebe Group Company Barber Colman 7SD, Инструкция по эксплуатации

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19
Operating Parameters
From the “normal operating mode,” press the FUNC key.
The lower display will show the code while the upper
display shows the setting or the status (ON or OFF) of
the selected parameter.
Press the
▲
or
▼
key to change the setting.
Press the FUNC key again and the instrument stores
the new setting and goes to the next parameter.
Some of the following parameters may not appear,
depending on the configuration.
Param Description
SP Control setpoint (in engineering units).
Range: From rL to rH.
n.rS Manual reset of the alarms.
This parameter is available only when one
alarm with manual reset has been
programmed. Set ON and press the FUNC
key to reset the alarms.
nnn Software key for parameter protection.
This parameter is skipped if P11 = 0 or 1
ON = The instrument is LOCKed
OFF = The instrument is UNLOCKed
To switch from LOCKed to UNLOCKed,
enter the stored P11 numeric safety lock.
To switch from UNLOCKed to LOCKed,
enter a value different from the stored P11
numeric safety lock.
AL Alarm setpoint (in engineering units).
HSA Alarm hysteresis (0.1 to 10.0% of span).
Pb Proportional band (1.0 to 99.9% of the span
for heating).
For heating/cooling, 3 digit dual display only
(1.5 to 99.9%). If Pb = 0, the instrument
performs ON/OFF control; tl, tD, C, C2, rC,
OLP, OLh and tOL are skipped; and
autotuning (Smart AT) is turned off.
hS Hysteresis (for ON/OFF control)
Range: 0.1 to 10% of input span.
tl Integral time (from 1 minute and 20 seconds
to 20 minutes and 0 seconds; when above
the upper limit the display blanks out and
the integral is not used).
td Derivative time (from 1 second to 9 minutes
and 59 seconds; setting td = 0 turns off the
derivative action).
IP Integral pre-load.
This parameter is skipped if PB = 0.
Range:
- From 0 to 100% for one control output
- From -100 to 100% for two control outputs
(3 digit dual display model only).
C Heating cycle time (from 1 to 200 seconds).
C2 Cooling cycle time (3 digit dual display
model only; from 1 to 200 seconds).
rC Relative cooling gain (3 digit dual display
model only; from 0.20 to 1.00).
OLP Deadband/Overlap (3 digit dual display
model only; from -20 to +50% of the
proportional band).
rL SP minimum setting (from the initial scale
value (P2) to rH).
rH SP maximum setting (from rL to the full
scale value (P3).
OLH Output maximum power (from 0 to 100%
of the heating output).
From -100 to 100% for heating/cooling
output (3 digit dual display model only).
tOL Duration of the output power limit.
From 1 to 100 minutes. Above 100, the
display shows “InF”” and the limit is always
enabled.
NOTE: The tOL can be modified but the
new value will become operative
only at the next instrument start up.